Comtest has announced the introduction of the Keithley Series programmable, low-noise, three-channel power supplies that deliver up to 375 W in a compact 2U high, half-rack-wide enclosure.
Designed for flexibility, accuracy and low noise when testing high-power, multi-voltage circuits such as LED drivers, automotive and power-IC circuits, the power supplies’ three channels are isolated, independent and individually programmable with remote sensing for each channel.
The 2230G-30-3 provides 195 W with two 30 V, 3 A channels and a 5 V, 3 A channel, while the 2230G-30-6 and 2230G-60-3 provide up to
375 W, with two 30 V, 6 A channels and two 60 V, 3 A channels, respectively. Both 375 W versions also have a 5 V, 3 A third channel. For higher voltages or currents, 30 V channels can be combined in series to get up to 60 V, and two or three channels can be connected in parallel to deliver up to 15 A from the 2230G-30-6. All channels are simultaneously displayed on the front-panel display.
To minimise the effects of noise on the device under test (DUT), the triple-output power supplies use a linear design with less than 1 mV rms ripple and noise. The linear design also ensures the supplies don’t add to ambient noise and affect other sensitive instrumentation being used for test. Using the supplies’ remote sensing capability, the user can set and monitor output voltages with a 0,03% basic accuracy and a resolution of 1 mV. Load current can be monitored to 0,1% basic accuracy and 1 mA resolution.
The power supplies include both front and rear access to the power outputs for orientation flexibility in test setups, while minimising required lead lengths to reduce noise pickup, minimise losses and keep the test setup neat. The 2230G series come with three standard interfaces options for PC-based control: USB, GPIB and RS-232.
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